ICL3241CBZ

Overview

The ICL3241CBZ is a triple line transceiver manufactured by Renesas Electronics Corporation, designed for RS-232 communication applications. It features three drivers and five receivers in a full-duplex configuration. The device operates within a supply voltage range of 3V to 5.5V and supports data rates up to 250kbps. It is housed in a 28-SOIC package with a width of 7.50mm. The component functions reliably across an operating temperature range of 0°C to 70°C and includes a receiver hysteresis of 300 mV. It complies with RoHS3 standards and has a moisture sensitivity level of 3.

Feature Summary

• Provides complete RS-232 serial port functionality through integrated driver and receiver channels.
• Incorporates efficient on-chip charge pump technology requiring minimal external capacitance.
• Ensures signal integrity with specified receiver hysteresis characteristics.

Applications

• Personal digital assistants (PDA) and handheld computers
• Laptop and portable computer serial interfaces
• Low-power embedded systems requiring RS-232 connectivity

Procurement Notes

Verify the specific suffix 'CBZ' against the manufacturer's current datasheet to confirm package type and commercial temperature grade alignment. Ensure the source document explicitly identifies the part as active or obsolete status before procurement planning. Cross-reference the 28-SOIC footprint dimensions with PCB design libraries to prevent mechanical interference during assembly.

Selection Notes

Select this component when a full RS-232 interface is required for 3.3V or 5V systems without external charge pump complexity. Compare the 0°C to 70°C operating range against environmental requirements; consider extended temperature variants if operation below 0°C is necessary. Verify that the 250kbps data rate meets system throughput needs compared to higher-speed alternatives.

Part Context

This device belongs to the Intersil ICL32xE series of low-power RS-232 transceivers, now produced under Renesas Electronics. The series targets portable electronics where power consumption and board space are critical constraints. The ICL3241 variant specifically offers the channel count needed for standard full-function serial ports in compact form factors.

Replacement Considerations

Public documentation lists MAX3243EIDW and MAX3243EIDWR from Texas Instruments as upgrade substitutes. Verify pinout compatibility and electrical parameter equivalence before substitution.